Sean Hogan has been involved in horticulture since about 18 months of age and seriously since the age of three. He served as horticulturist at the UC Botanical Garden at Berkeley and is now owner of Cistus Design and Nursery, specializing in plants from all over the world, especially western natives, and designing public and private gardens on the West Coast and beyond. Sean is the author of Flora: A Gardener’s Encyclopedia and Trees for All Seasons: Broadleaf Evergreens for Temperate Climates, both from Timber Press.

Kate Frey is a noted garden designer and eloquent advocate for pollinators. She designed and managed the famous organic public garden at Fetzer Vineyards, the Melissa Garden in Healdsburg, and the landscape at Lynmar Winery in Sebastopol. Her gardens won 2 gold medals at the Chelsea Flower Show in London, a rare honor for an American designer. Kate currently writes for the Press Democrat newspaper and Ten Speed Press published her book, The Bee-Friendly Garden, in 2016. Her newest educational venture, The American Garden School (www.americangardenschool.com), debuted in 2017.

Pamela Waterman is a freelance writer who gardens in Pasadena, California. She has written frequently about gardens and gardeners in Pacific Horticulture, most recently about the work of landscape architect Isabelle Greene of Santa Barbara. She is now working on a book about Isabelle’s gardens. She has been an advisor to Pacific Horticulture‘s Gardening Under Mediterranean Skies symposia.